(L773:0022 0477 OR L773:1365 2745)
Sökning: (L773:0022 0477 OR L773:1365 2745) > Disentangling plant...
- 2 av 249
- Föregående post
- Nästa post
- Till träfflistan
Disentangling plant and soil microbial controls on carbon and nitrogen loss in grassland mesocosms
- De Vries, Franciska T. (författare)
-
- Bracht Jörgensen, Helene (författare)
- Lund University,Lunds universitet,Biodiversitet,Biologiska institutionen,Naturvetenskapliga fakulteten,Biodiversity,Department of Biology,Faculty of Science
-
- Hedlund, Katarina (författare)
- Lund University,Lunds universitet,Biodiversitet,Biologiska institutionen,Naturvetenskapliga fakulteten,Biodiversity,Department of Biology,Faculty of Science
- visa fler...
- Bardgett, Richard D. (författare)
- visa färre...
- (creator_code:org_t)
- 2015-02-27
- 2015
- Engelska.
- Ingår i: Journal of Ecology. - : Wiley. - 1365-2745 .- 0022-0477. ; 103:3, s. 629-640
- Tidskriftsartikel (refereegranskat)
Abstract
Ämnesord
Stäng
- It is well known that plant-soil interactions play an important role in determining the impact of global change phenomena on biodiversity and ecosystem functioning. Little is known, however, about the individual and relative importance for carbon (C) and nitrogen (N) cycling of non-random changes in plant and soil communities that result from global change phenomena, such as fertilization and agricultural intensification. We set up a field-based mesocosm experiment in which we re-inoculated soil with contrasting microbial communities taken from extensively managed and from intensively managed grasslands. In a full-factorial design, we subsequently established plant communities representative of intensively and extensively managed grasslands and imposed a fertilization treatment. We then measured plant biomass and diversity, and leaching of C and N as key measures of C and N loss. We hypothesized that non-random changes in both microbial and plant communities would impact C and N leaching, but via different mechanisms. We predicted that plant communities representative of extensively managed grassland would reduce C and N leaching directly through increased water or N uptake, or indirectly via promoting microbial communities that immobilize C and N, whereas plant communities of intensively managed grassland would have the opposite effect. We also hypothesized that microbial communities of extensively managed grassland would feed back positively to plant diversity and that matching' plant and microbial communities would reduce C and N leaching. We found that both plant and microbial communities from extensively managed grassland reduced C and N leaching, especially when matched'. Plant community effects on C and N leaching operated directly through root C inputs and N uptake, rather than through changes in soil microbial communities. In contrast, microbial communities modified C and N leaching both directly by immobilization and indirectly through modifying plant community composition. Synthesis. Our results show that changes in plant and microbial communities both individually and interactively modify C and N loss from grasslands. Moreover, our results suggest that soil microbial communities typical of extensively managed grassland might counteract, or delay, the negative consequences of fertilization on plant diversity and ecosystem functioning.
Ämnesord
- NATURVETENSKAP -- Biologi -- Ekologi (hsv//swe)
- NATURAL SCIENCES -- Biological Sciences -- Ecology (hsv//eng)
Nyckelord
- bacteria
- carbon
- feedback
- fungi
- microbial community
- nitrogen
- plant
- community composition
- plant-soil (below-ground) interactions
Publikations- och innehållstyp
- art (ämneskategori)
- ref (ämneskategori)
- 2 av 249
- Föregående post
- Nästa post
- Till träfflistan
Hitta mer i SwePub
- Av författaren/redakt...
- De Vries, Franci ...
- Bracht Jörgensen ...
- Hedlund, Katarin ...
- Bardgett, Richar ...
- Om ämnet
-
- NATURVETENSKAP
- NATURVETENSKAP
- och Biologi
- och Ekologi
- Artiklar i publikationen
- Journal of Ecolo ...
- Av lärosätet
- Lunds universitet
Sök utanför SwePub
- Sök vidare i:
- Google Book Search
- Google Scholar
Kungliga biblioteket hanterar dina personuppgifter i enlighet med EU:s dataskyddsförordning (2018), GDPR. Läs mer om hur det funkar här.
Så här hanterar KB dina uppgifter vid användning av denna tjänst.
- Copyright © LIBRIS - Nationella bibliotekssystem
- LIBRIS.kb.se
